Like mining, beneficiation for chromite depends on the characteristics of the ore deposit and on the mining methods used. For example, an operation extracting only high grade ore may require only hand sorting and screening.
The mining of minerals in Nigeria accounts for only 0.3% of its GDP, due to the influence of its vast oil resources. The domestic mining industry is underdeveloped, leading to Nigeria having to import minerals that it could produce domestically, such as salt or iron ore.
Domestic mining for chromite was restricted to a few locations in the United States, including Montana, California, and Oregon, and mining the mineral was only economically feasible during times of political conflict. During wartime, the United States government supported domestic production with price supports and strategic stockpiling programs.
p0165 Although the intention of chromite mining is to re move chromite from the ore for the production of ferrochrome, the process is not 100% efﬁcient, so mining and smelting was tes including ...
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Chromite ore 1. Chromite ore beneficiation Prepared by Mukesh Ranjan Behera 2. Introduction Steel scenario Physical and chemical properties Occurrences Classification and uses World chromite production Global reserves and demand List of companies engaged Potential of India Mining methods Beneficiation Cost variation
Federal University of Technology, P.M.B. 1526, Owerri, Nigeria E mail: [email protected] Abstract The increasing costs of electric energy and thus the need to reduce the energy required to produce ferrochrome from chromite ore have spurred the innovations in the technologies used for smelting chromite ore. These technologies
However, due to podiform nature of the chromite, underground mining is also done. Use of donkeys for hauling the ore from underground is still in practice. The haulage machinery is also used.
its were confirmed while new ones were identified and documented. The metallic minerals found in Nigeria include iron ore , ferro alloy minerals , tin ore , lead/zinc, niobium ...